About to start divorce proceedings and need some help please

My husband and I will need to divorce and that much is clear. He has just today left and texted to say it would be permanent (which is not unwanted news to me). But what now? Does divorce cost hundreds? Can I DIY it and is that advisable? I'm a stay at home mum so what does it.mean for me. Do I have to leave almost immediately so house can be sold and proceeds divided? I'm just worried how I would manage the mortgage with the type of job I'd be able to get which fits around the kids. I know divorce is the right thing for me but easiest would be for me to just stay with my husband. It would affect me mentally and emotionally though. Im not sure im making the best decision for the kids and whether at the end of this we would all be ok.

Yes... definitely get TC sorted out because they take a while to come through. Do not leave the house. Do not change the locks.

Gather and make copies of all paperwork especially his payslips, bank accounts, pension details. Check any investments, ISA etc that you have. Check any joint savings accounts and if able transfer half to your own account just incase he wipes it out

I found it perfectly possible to DIY the actual divorce, take advice from a solicitor on finances and reach agreement with my ex doing the forms ourselves - cost about 1100 in total. I can't stress enough how important that legal advice on finance is, get figures together as far as you can first to minimise cost. Use gov.uk and wikivorce forums.